Fire-escape.



Patented Mar. 4, [902. F. KASCHEWITZ & P. BARTHEL.

FIRE EscAP. [Application filed. Sept. 5, 1901 2 SheeisSheBf L (NoModel.)

THE NORRIS 9EIERS CO PNQTWLITHGM WASHINGTON. D. C

Patented Mar. 4, !902. F. KASCHEWITZ &. P. BARTHEL.

FIRE ESCAPE.

(Application fllad Sept. 5, 1901.) v

2 $heets$heet 2.

(No Model.)

' fidzarfiaz UNITED. STATES PATENT Choice.

FRIEDRICH KASCHEWITZ AND PAUL BARTHEL, OF GOTHA, GERMANY.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 694,866, dated March 4,1902. Application filed September 5, 1901, Serial No. 74,438. (lifemodel.)

have invented certain new and useful Improvements in Fire-Escapes, ofwhich the following is a specification.

Our invention relates to an appliance for saving from fire; and itconsists ofa numberof tubes telescoping into each other and which can beextended by means of a winch, the tubes being mounted on a framework adjustable so as to incline at any angle and revolving on a pivot and whichruns on Wheels. The tubular arrangement when extended by the aid ofsuitable catches, which can be manipulated from below, forms a mast, onthe upper end of which is fixed a pivoting-arm fitted with rope-pulleys,such arm being attached before the apparatus is extended to the desiredheight, orit may be permanently fixed thereto. This arm is directedtoward the building on fire, from which human beings, animal's,valuables, or the like are to be removed. The upper end of the ropewhich passes over the pulleys on the aforesaid arm carries ahoisting-cage or the like, andthe lower end of the rope is fastened onthe rope-' drum of a Windlass. This Windlass, like the winch beforereferred to for extending or collapsing the tubes forming the mast, isrigidly attached to the pivoting -'frame, and this frame is so arrangedthat in casethe supporting-carriage should not stand in a horizontalposition on account of the nature of the ground it can be placed in aposition with regard to the carriage that the mast is always strictlyvertical. Each of the tubes comprising the mast is about the height ofone story, and as many tubes are telescoped into each other as willequal the number of stories in the highest dwelling-houses of the townin question for which the arrangement is intended.

In the annexed drawings a form of the in vention is illustrated, inwhich- Figure 1 shows an elevation, partly in section, as arranged fortransport or when not in use. Fig. 2 shows the arrangement when in use,and Fig. 3 is a plan. vIn Fig. 4 it has of the screws 2.

been assumed that the carriage on which the appliance is mounted isresting on sloping ground and the device has been adjusted so as tooccupyavertical position. Figs. 5 and 6 show sectional details.

The construction, manipulation, and mode of action of the illustrateddevice are as follows:

A cast-iron base 3 is supported on the carriagelinsuchamanner thatitcanbe adj usted so as to incline to any desired angle by means The screws2, which may be provided with hand-wheels 4, work in nuts arranged inthe carriage-plate 1 and are each provided with a flange 5, which thecasting 3, is freely supported. Any vertical displacement of the casting3, through which the screws 2 loosely pass, is prevented by the bossesor hubs of the hand-wheels 4, Figs. 1, 2, t. As the casting 3 is squarein plan, it is advisable to employ four screws 2, one at each cornerthereof.

In the center of the casting 3 is the framework for the mast, consistingof a fixed tube with the grooves 10 are longitudinal grooves 11, whichonly extend from the top downward for about two-thirds of the length ofcollar 9tha-t is to say, they are not of equal length thereto. Asomewhat longer tube 12 is inserted in the tube 6, the external diameterof which corresponds with the internal diameter of collar 9, so'that thetube 12 is accurately guided by the collar 9. The tube 12 is providedwith longitudinal ribs 13, which do not quite reach to its lower end andwhich engage with the full length longitudinal grooves 10 ofcollar 9,Figs. 5 and 8. If the tube 12 is drawn upward out of the tube 6, theribs 13 will slide in the grooves 10 and thetube 12 be prevented fromrevolving in the tube 6; but as soon as the ribs 13 are clear of thegrooves 10 the tube 12 will be at full liberty to revolve. It now it isturned so that its ribs 13 can engage with the grooves 11, which do notextend downward through the full length of collar 9, the tube 12 will beheld fast in the raised or extended posit ion.

Sliding in tube 12 is a tube 14, inserted in the same manner as the tube12 within the tube 6, beforereferred to, this tube 14 being likewise ofthe approximate height of one story.

As hereinbelore stated, as many tubes 12 14 may be inserted in eachother as will correspond to the number of stories to which thefully-extended mast is to reach when in its upright position. The lastof these telescopic tubes-that is to say, the one of the smallestdiametercarries an arm 15, which is arranged so that it can easily beattached by means of a swivel arrangement and carries at its upper orfree end a sheave 16. The upper end of the support 17 ot' the arm 15,which is inserted in the innermost tube of the mast, is likewiseprovided with pivoting arrangement and is provided with a sheave, 18.The arm is extended to the rear and terminates in an eye 19, which formsa guide for the rope 20. The rope is secured at one end to the rope-drum21 of a special Windlass 22 of any suitable construction and carries atits other end a hoist or cage 23 of any optional suitable size andconstruction. The Windlass 22 is rigidly attached to the frame 8, whichframe revolves on the tube 6. This frame further carries a winch 24, theracks of which are of the approximate height of one story and are placeddiametrically opposite to each other and guided on the revolving frame 8by suitable vertical guides. The free upper ends of these winch-racks25, the purpose of which is to raise or lower the telescopic tubes, havesockets 26, carrying pins 27, radially directed toward the telescopictubes. These pins 27 are constantly pressed against the aforesaidtubes'by spiral springs 28, lodged in the sockets 26, the tubes beingprovided at intervals around the heads 29 with radial holes 30. Theouter ends of these pins 27 are connected by means of an articulatedjoint with the angle-levers 31, which are pivotally supported on theracks 25. The opposite ends of the angle-levers have attached to them ameanssuch as a cord, wire, or the like-for actuating the lever frombelow, and by this means the pins 27 can be disengaged when desired.

The frame 8 has at its foot a toothed annulus 33, with which gears apinion 34 of aspecial hand-crank 35. If this crank 35 (which may bereplaced by a hand-wheel) is turned in either direction, the frame 8,and with it the winches 22 and 24, as well as the pins or bolts andtheir sockets and actuating-lever, will be caused to revolve in one orother direction on the fixed tube 6.

WVhen the device just described is to be used, the frame is in the firstplace brought into a vertical position (presuming that the carriage 1 isstandingin a somewhat-inclined position in front of the burningbuilding) by a suitable adjustment of the screw-spindles 2 by means ofthe hand-wheel 4. Thereupon the arm 15 is fitted upon the innermost ofthe telescopic tubes. The rope is passed through the eye 19, carriedover the pulleys 16 and 18, and attached to the cage 23. This lattermanipulation will only be necessary if the arm 15, with its accessories,has not previously been fixed in position,which it may be, even duringthe transport of the appliance, with the exception of the cage,whichmight be tied on below. If the arm 15 is already in the positionindicated, it need only be turned toward the burning building on arrivalin front thereof. The crank 35 is turned in a given direction until thecatch-pins 27 engage the holes of the innermost tube 14. When this takesplace, the winch 24 is turned so that its racks 25 are raised, wherebythe innermost tube 14 is extended. When the latter has reached itshighest point, which will be recognized by the fact that the rackscannot be moved farther, the operation of the winch 24 is suspended, andthe crank is again turned until the frame 8 has reached the pin 36 onthe fixed tube 6. The longitudinal winch 13 of tube 14 will thereby bebrought exactly over the grooves 11, which do not extend through thefull length of the collar of the next larger tube 12. If now therackwork-winch 24 is turned back, the tube 14 will be lowered, so thatits ribs 13 enter the grooves 11 until they are stopped at the lower endof the grooves. The catch-pin arrangement 27 is now released by means ofthe arrangement 32, whereupon the racks 25 are free to be moveddownward. During this operation a man will be stationed at therope-Windlass 22 and will as soon as requisite ease the rope 0% therope-drum, so that the loose length of rope may be extended inaccordance with the height attained by the extended mast. When the racks25 have again arrived at their lowermost point, the revolving frame 8 isturned again by a suitable motion of crank 25 until the catch-pins 27catch into the holes 30 of the next tube 12, and the process justdescribed is repeated un til a sufficient number of telescopic tubeshave been extended to reach the requisite height.

After use the above-described operation is reversed in order to fit thedevice for transport again.

The cage 23, which is utilized for saving purposes, is applied in anyknown manner.

Having now particularly described and ascertained the nature of our saidinvention and in what manner the same is to be performed, we declarethat what we claim is 1. A device for saving from fire, havingtelescoping tubes, such tubes being individually extended and lowered bymeans of a rackwork-winch arranged on the frame, the connection betweenthe rack and the tubes being established by means of a catch pin or boltGame i f s operated from below, substantially as herein the tubes, meansbelow the pin for operating described and illustrated by the appended"the Same, and meohanism for actuating said drawings. I pinion. I Asaving appliance orfire-escape eonsist- In testimony whereof we havehereuntoset I 5 5 ing ofa plurality of tubes,one of the tubes havourhands in presence of two subscribing witing grooves and the cooperatinggroove havnesses. v 1 l b ing ribs to travel in said tube and thegrooved v. FRIEDRICH KA SOHEWI'IZ, tube having recesses alternating withthe PAUL BARTHEL. l 5 grooves and adapted to receive the ends ofWitnesses: o the ribs, 21 rack, a pinion meshing with said MAX MEYER,

reek, a pin for conpling said rack to one of .1 WILHELM BRUDEWALD.

